ἀκατακλινής

From LSJ

τῷ πυρὶ τῆς ὁδοῦ τεκμαιρόμενοι → judging of the road by the fire

Source

Spanish (DGE)

-ές
indoblegable τὸ ἄτρεπτον, τὸ ἀ., τὸ ἀμείλικτον Procl.in Ti.3.258.22.